check summation

What is check summation?

check summation meaning A technique for error detection to ensure that data or program files have been accurately copied or transferred. Basically, a redundant check in which groups of digits; e.g., a file, are summed, usually without regard to overflow, and that sum checked against a previously computed sum to verify operation accuracy. Contrast with cyclic redundancy check [CRC], parity check. See: checksum.


reference: U.S . Food & Drug – Glossary of Computer System Software Development Terminology (8/95)